Green’s Dictionary of Slang

trap v.1

(US black/drugs) to sell drugs, thus trapping, drug dealing.

Drama ‘Left, Right, Left’ [lyrics] Godby Road is where I trap, putting in work like a 9 to 5.
Yung Joc ‘Picture Perfect’ [lyrics] Niggaz trap all night in project hallways.
Big Boi ‘In The A’ [lyrics] Yeah, you may be able to out-trap me, but what?
[UK]Section Boyz ‘Trapping Ain’t Dead’ [lyrics] Trapping ain't dead / My connect’s still breathing.
hubpages.com ‘Roadman Slang 4 Jun. [Internet] Trapping - dealing drugs.

In derivatives

trapper (n.)

see separate entry.

In compounds

trap house (n.) [note also trap house under trap n.1 ]

a house or apartment used for drug dealing.

Gucci Mane ‘Trap House’ [lyrics] Made a hundred thou in my trap house.
Big Sean ‘First Chain’ [lyrics] Trap house built brick by brick, paid dues on dues.
J. Spades ‘Flexin’’ [lyrics] I swear I nearly / Went crazy feds drop by the trap house.
trap star (n.)

a successful drug dealer.

Pastor Troy ‘4 My Hustlaz’ [lyrics] Niggaz they call trap stars.
[US]Fat Joe ‘Think About It’ [lyrics] We do it for them trap stars, serving them packs.
[US]Nas ‘Where’s The Love’ [lyrics] You know the real rap gods, typical trap star turned rap star.